KR20160050532A - Humidification filter, and vaporizing humidifier comprising the humidification filter - Google Patents

Abstract

A humidification filter is disclosed. The humidification filter is made by mixing hydrophobic synthetic fiber and at least one among natural fiber and regenerated fiber. The purpose of the present invention is to provide a vaporizing humidifier having a humidification filter, and the humidification filter preventing chemical substances with a pungent smell from being emitted when water is vaporized from the humidification filter.

Description

TECHNICAL FIELD [0001] The present invention relates to a humidifying filter, and a vaporizing humidifying device including the same. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a humidifying filter and a vaporizing humidifying device including the same, and more particularly, to a humidifying filter which does not release chemical substances having irritating odors when water is vaporized from a humidifying filter, and a vaporizing humidifying device .

The humidifying device can be divided into an ultrasonic humidifying device and a vaporizing humidifying device in detail. An ultrasonic humidifying device is a device for generating fine droplets by using an ultrasonic vibrator and supplying the fine droplets to the air for humidification. The evaporative humidifying device is a device that humidifies water by allowing air to flow through a wet filter.

Unlike an ultrasonic humidifier, the humidification type humidifier is humidified using a humidifying filter. Therefore, the main characteristics such as the humidification amount vary depending on the material, shape, material, and chemical treatment of the humidifying filter.

The humidifying filter used in the conventional vaporization type humidifying device is generally composed of hydrophilic or hydrophobic synthetic fibers.

However, in the case of a humidifying filter composed of synthetic fibers having hydrophilic properties such as nylon, when the humidifying filter is humidified in a state in which the humidifying filter is sufficiently wetted with water, it operates abnormally. However, At the time when the filter was dried, a strong irritating odor was generated as the hydrophilic chemicals were combined with water and released together into the air.

On the other hand, the humidifying filter composed of the hydrophobic synthetic fibers has a disadvantage in that it can not provide a sufficient humidification amount although the possibility of causing the above problems is small because there are few hydrophilic substances. Therefore, in the case of hydrophobic synthetic fibers, chemical treatment such as hydrophilic coating is inevitable in order to obtain the desired amount of humidification. Therefore, even in this case, there is a problem that a coated chemical is evaporated together with water when the humidifying filter is dried, and a strong irritating odor is generated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a humidifying filter which does not release chemical substances having irritating odors when water is vaporized from a humidifying filter, and a vaporizing humidifying apparatus I have to.

According to an aspect of the present invention, there is provided a filter for humidifying a mixture of at least one of natural fibers and regenerated fibers with hydrophobic synthetic fibers.

In this case, the hydrophobic synthetic fibers are not subjected to a hydrophilic coating treatment.

On the other hand, the natural fiber may be any one of hemp fiber, cotton fiber and bamboo fiber.

On the other hand, the regenerated fiber may be viscose rayon.

On the other hand, the hydrophobic synthetic fiber may be any one of polypropylene (PP) and polyethylene terephthalate (PET).

The humidifying filter may be a woven fabric of at least one of the regenerated fiber and the natural fiber and the hydrophobic synthetic fiber.

The humidifying filter may be a nonwoven fabric in which the regenerated fiber and the natural fiber are mixed with the hydrophobic synthetic fiber.

In this case, the density of the nonwoven fabric-type humidifying filter may be 80 to 110 g / m ² .

On the other hand, the humidifying filter may have a plurality of bends.

On the other hand, the natural fiber or the regenerated fiber may be composed of a single strand.

In this case, the ratio of the hydrophobic synthetic fibers in the humidifying filter may be 70 to 90%.

On the other hand, the natural fiber or the regenerated fiber may be formed by twisting a plurality of strands.

In this case, the proportion of the hydrophobic synthetic fibers in the humidifying filter may be 50 to 90%.

Meanwhile, the evaporative humidifying device according to an embodiment of the present invention includes a humidifying filter in which at least one of natural fibers and regenerated fibers and hydrophobic synthetic fibers are mixed.

According to various embodiments of the present invention as described above, it is possible to solve the problem that the irritating odor is generated when the humidifying filter is dried.

1 is a view for explaining a humidifier according to an embodiment of the present invention,
2 to 3 are views for explaining a filter for humidification according to various embodiments of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, in the entire specification including the drawings, when a part is referred to as being 'connected' with another part, it is not only a case where it is directly connected, but also an indirect connection And the like. Also, to "include" an element means that it may include other elements, rather than excluding other elements, unless specifically stated otherwise.

1 is a view for showing a humidifier apparatus 100 according to an embodiment of the present invention.

Referring to FIG. 1, a humidifying device 100 according to an embodiment of the present invention is a vaporized humidifying device that humidifies water by passing air through a wet filter to evaporate water. The humidifier (100) includes a humidifying filter (10), a blowing fan (20), and a water tank (30).

The humidifying filter 10 may be provided in the humidifying apparatus 100 as shown in FIG. 1. The water in the water bath 30 is uniformly distributed to the humidifying filter 10 as the humidifying filter 10 rotates Can be absorbed. On the other hand, the humidifying filter 10 can be manufactured in various shapes such as a disk and a paper.

 Although not shown in FIG. 1, a supporting means for supporting the humidifying filter 10 for rotating the humidifying filter 10 may be provided, and the humidifying filter 10 may be attached to and detached from the supporting means Do. As the support means is rotated, the humidifying filter (10) mounted on the support means can be rotated.

As described above, the water contained in the water tank 30 can be absorbed by the humidifying filter 10 while the humidifying filter 10 is rotated. The water absorbed in the humidifying filter (10) can be vaporized by the outside air provided by the blowing fan (20). That is, the humidifying filter 10 serves to widen the contact area between water and outside air so that vaporization of water can be more easily caused.

Meanwhile, the humidifying filter 10 according to an embodiment of the present invention is a mixture of at least one of natural fiber and regenerated fiber and hydrophobic synthetic fiber, and can be manufactured in various forms.

For example, the form of the humidifying filter 10 according to an embodiment of the present invention is a form in which at least one of natural fibers and regenerated fibers and hydrophobic synthetic fibers are woven, that is, in the form of a fabric. An example of the humidifying filter 10 woven in Fig. 2 is shown.

2 is a view for explaining a woven humidifying filter 10 according to an embodiment of the present invention. 2, the humidifying filter 10 is woven so that at least one of the natural fiber and the regenerated fiber and the hydrophobic synthetic fiber are woven to have a surface area sufficient for absorption and vaporization of water to form a plurality of voids 11 Lt; / RTI > Specifically, the woven form may be in the form of a three-dimensional fabric, mesh, which is advantageous for widening the surface area. As an example of the type of fabric that can be applied to the humidifying filter 10, there may be a russell structure, or a honeycomb structure.

The humidifying filter 10 according to another embodiment of the present invention may be in the form of a nonwoven fabric in which hydrophobic synthetic fibers are mixed with at least one of natural fibers and regenerated fibers. The non-woven fabric means a form in which the fibers are mixed by using the adhesive, the adhesion force of the fibers themselves, or the entanglement of the fibers after the fibers are properly arranged.

The humidifying filter 10 can be manufactured in various forms other than the above-described forms. Hereinafter, the fiber material constituting the humidifying filter 10 will be described in detail.

The humidifying filter 10 according to an embodiment of the present invention is a mixture of different kinds of fibers, specifically, natural fiber or regenerated fiber mixed with synthetic fiber.

The synthetic fibers used in the humidifying filter 10 may be, for example, hydrophobic synthetic fibers such as polypropylene (PP), polyethylene terephthalate (PET) and the like.

On the other hand, when such a hydrophobic synthetic fiber is chemically treated with a hydrophilic coating or the like, it may be advantageous for the humidifying filter 10 to be sufficiently wetted with water. However, when the humidifying filter 10 is dried, There is a fear that a phosphorus odor may be generated. Therefore, the hydrophobic synthetic fibers constituting the humidifying filter 10 according to the embodiment of the present invention may not be subjected to chemical treatment such as hydrophilic coating.

The synthetic fibers used for the humidifying filter 10 may be hydrophilic such as nylon. However, in the case of hydrophilic synthetic fibers such as nylon, a hydrophilic chemical substance contained in the fiber itself may evaporate during drying, which may cause irritating odor.

Therefore, in order to prevent irritating odor generation, it is preferable that the synthetic fiber used in the present humidifying filter 10 is hydrophobic. In this case, it is difficult to achieve a sufficient moisture absorption amount only by the hydrophobic synthetic fibers. Therefore, in order to compensate for the disadvantages of such synthetic fibers, natural fibers or regenerated fibers excellent in moisture absorption and wetting characteristics and free of irritating odor may be further mixed to produce a humidifying filter 10.

In this case, the natural fiber may be, for example, hemp fiber, cotton fiber, bamboo fiber and the like. The regenerated fiber has a cellulose molecular structure, and may be, for example, viscose rayon.

On the other hand, natural fibers or regenerated fibers generally have weaker strength than synthetic fibers and have a wide range of shape deformation due to moisture absorption or wetting. Therefore, when the filter 10 for humidification is produced only with natural fibers or synthetic fibers, it is difficult to obtain the humidifying filter 10 having desired durability. In addition, since the natural fiber or regenerated fiber is easily deformed, the humidifying filter 10 is detached from the means for supporting the humidifying filter 10 so that the water springs out to an unwanted place in the humidifying device 100, 0.0 > 100) < / RTI > In this case, the water may be discharged outside the humidifier 100, which may cause inconvenience to the user. Therefore, according to the embodiments of the present invention, the synthetic fibers having high strength and favorable shape stability together with natural fibers or regenerated fibers are mixed with each other, so that disadvantages of the natural or regenerated fibers can be canceled by the synthetic fibers. That is, the humidifying filter 10 according to the embodiments of the present invention is a structure that can fully exploit the advantages of each fiber.

On the other hand, since natural fibers or regenerated fibers are spun yarns and their tensile strengths are weaker than synthetic filaments, when they are mixed with synthetic fibers of the same thickness, the strengths of the natural fibers or regenerated fibers are likely to be different, have. Therefore, the natural fiber or regenerated fiber used in the humidifying filter 10 according to the embodiment of the present invention may be formed by twisting a plurality of strands to have appropriate strength. That is, the natural fiber or the regenerated fiber yarn is twisted in two or more strands. As described above, when a plurality of strands of stranded natural fibers or regenerated fibers are used, the contraction ratio due to the characteristics of natural fibers or regenerated fibers can be minimized during weaving.

Hereinafter, the mixing ratio of the fibers constituting the humidifying filter 10 according to the various embodiments of the present invention will be described.

Tables 1 to 2 show the results of performing performance tests on the humidification filter 10 manufactured according to various embodiments of the present invention.

Specifically, Table 1 shows shrinkage ratios for a humidifying filter woven using a single-stranded natural fiber or regenerated fiber. Table 2 shows the shrinkage ratio of the filter for humidifying woven fabric using natural fibers or regenerated fibers twisted in two or more strands. Is the shrinkage rate at the time of employment.

[Synthetic fiber: single strand natural fiber (regenerated fiber)] The shrinkage ratio when the filter for humidification woven with three-dimensional structure (Russell structure) Synthetic fiber mixing ratio Contraction ratio Judgment 95% 2% Shrinkage stability / lack of humidification 90% 3% Shrinkage stability 80% 5% Shrinkage stability 70% 7% Shrinkage stability 60% 10% Severe shrinkage 50% 16% Severe shrinkage 20% 22% Severe shrinkage 0% 25% Severe shrinkage

- Shrinkage stability zone: less than 10% shrinkage

- Synthetic fibers used: PET

- Used natural fibers: hemp fiber

- Recycled fibers used: viscose rayon

Table 1 shows the results of experiments performed on [PET: single strand hemp fibers] and [PET: single strand viscose rayon]. As a result of the experiment, a humidifying filter having a ratio of PET of 70 to 90% of hydrophobic synthetic fiber achieved a shrinkage ratio of less than 10%.

[Synthetic fiber: natural fiber (regenerated fiber) stranded with plural strands] The shrinkage ratio when the filter for humidification woven with a three-dimensional structure (Russell structure) Synthetic fiber mixing ratio Contraction ratio Judgment 95% One% Shrinkage stability / lack of humidification 90% 2% Shrinkage stability 80% 3% Shrinkage stability 70% 4% Shrinkage stability 60% 7% Shrinkage stability 50% 9% Shrinkage stability 20% 22% Severe shrinkage 0% 25% Severe shrinkage

- Shrinkage stability zone: less than 10% shrinkage

- Synthetic fibers used: PET

- Used natural fibers: hemp fiber

- Recycled fibers used: viscose rayon

Table 2 shows the results of the experiments performed on [PET: multiple strands twisted hemp fibers] and [PET: multiple strands twisted viscose rayon]. As a result of the experiment, the humidifying filter having a ratio of PET of 50 to 90% of the hydrophobic synthetic fiber achieves a shrinkage ratio of less than 10%.

According to the above-mentioned experimental results, in the case of the humidifying filter 10 woven using a plurality of strands of natural fibers or regenerated fibers together with the synthetic fibers, it is preferable that the ratio of the synthetic fibers is 50 to 90% The shrinkage ratio can be obtained. In the case of the humidifying filter 10 woven using natural fibers or regenerated fibers made of a single strand together with the synthetic fibers, a desired shrinkage ratio can be obtained in a section where the ratio of synthetic fibers is 70 to 90% . That is, it can be seen that, when natural fibers or regenerated fibers formed by twisting a plurality of strands are used, the shape of the humidifying filter 10 can be stably maintained even if synthetic fibers are included at a relatively low ratio.

According to various embodiments of the present invention, it is possible to produce the humidifying filter 10 in various forms. The humidifying filter 10 used in the experiment described above is a russel structure and has no bending. However, according to another embodiment, the surface area can be increased by forming a plurality of bends in the humidifying filter 10. A larger humidification amount can be obtained by using the humidifying filter 10 having a large surface area.

3 is a view showing a humidifying filter 10 having a plurality of bends according to an embodiment of the present invention.

Referring to Fig. 3, the humidifying filter 10 according to the present embodiment has a plurality of bends 16. A plurality of perforations 12 may be formed on the surfaces defined by the plurality of bends 16. Having a bend means that it has a wrinkle as shown in Fig.

On the other hand, the shape retaining member 14 may be inserted and fixed between the plurality of folds 16 so as to maintain the crease spacing of the humidifying filter 10 having the plurality of folds 16. The shape retaining member 14 may be a hardened, e.g., silicone, after being filled between the bends 16 at a high temperature.

The bending type humidifying filter 10 may be a woven fabric or a nonwoven fabric in which the fibers are properly arranged and then fixed with an adhesive or the like.

When the humidifying filter 10 is a folding type having the shape retaining member 14 as shown in Fig. 3, since the shape stability can be maintained by the shape retaining member 14, the natural fiber or the regenerated fiber and the synthetic fiber The effect of shrinkage rate by mixing ratio is small. Therefore, the mixing ratio can be appropriately selected in consideration of at least one of the properties of the fiber and moisture absorption and wetting of the fiber.

A bending operation must be performed to have the bending shape of the humidifying filter 10 as shown in FIG. 3, and a hot melting operation is performed to fill the shape holding member 14 between the bending portions. In this case, when the humidifying filter 10 is in the form of a nonwoven fabric, the density of the nonwoven fabric needs to be carefully selected for smooth conditions of the bending operation and the hot-meltting operation. Experimental results relating to nonwoven density will be described below.

In this experiment, the ratio of the synthetic fibers in the entire humidifying filter 10 was 70 to 90%. That is, in consideration of the price, the proportion of natural fiber or regenerated fiber, which is rather expensive, is set to 10 to 30%. The natural fibers (regenerated fibers) and the synthetic fibers were mixed at such a ratio to produce a nonwoven fabric-type humidifying filter 10 having different densities, which are bent. Specifically, the synthetic fiber used in this experiment is PET.

As a result of the test, when the density of the nonwoven fabric is less than 80 g / m ² , the strength of the nonwoven fabric is weak and it is easy to deform, and it is difficult to adjust the bending interval when the nonwoven fabric is made. It was found that the humidification amount did not appear uniformly.

On the other hand, when the density of the nonwoven fabric exceeds 110 g / m ² , the amount of water to be absorbed by the humidifying filter 10 is excessively large, which increases the weight of the humidifying filter 10. The humidifying filter 10 is not allowed to dry quickly when the humidifying apparatus 100 is in operation or when the humidifying apparatus 100 is not operated. As a result, the humidifying filter 10 is left wet for a long time, The problem of

Therefore, it is preferable that the density of the nonwoven fabric-like humidifying filter 10 in which natural fibers or regenerated fibers and synthetic fibers are mixed is 80 to 110 g / m ² .

The humidifying filter 10 according to the above-described various embodiments is composed of a mixture of hydrophobic synthetic fibers and natural fibers or regenerated fibers unlike the prior art, and irritating odor is hardly generated when the filter is dried. The following experiment was conducted to confirm the degree of irritating odor when the humidifying filter 10 according to various embodiments of the present invention was used.

Specifically, Table 3 summarizes the odor substances and the generated concentrations by the humidifying filter made only of synthetic fibers according to the conventional technique for comparison, and Table 4 shows the odor substances and the generated concentrations by the humidifying filters manufactured by the various embodiments of the present invention And the odorous substance and the concentration generated by the filter are summarized.

The odorous substances and the generated concentrations of the humidifying filter according to the comparative example Item PET
(Hydrophilic coating treatment) PP
(Hydrophilic coating treatment) PET PP Nylon Ref
(In air) When odor occurs Major odor Cause substance concentration
(Unit: ppb)



Pentanal 37.6 36.1 One 0 15 0 Butanal 35.1 30.5 0 0 22 1.3 Acetic acid 188.4 164.4 0 One 108 0 3- (Methylthio) -1-propene 30 28 0 0 11 0 Acetaldehyde 23.6 33.1 2.0 1.8 28 2.1

As can be seen from Table 3, in the case of the humidifying filter made of hydrophilic synthetic fibers such as Nylon, a large amount of substances causing irritating odor occurs, but in the case of the humidifying filter made of hydrophobic synthetic fibers such as PP or PET, It can be seen that almost no occurrence occurs. However, hydrophobic synthetic fibers such as PP or PET are required to have hydrophilic coating treatment with a small amount of water absorption. However, after the hydrophilic coating treatment, a large amount of substances causing irritating odor is generated as shown in Table 3.

The odor substance and the generation concentration of the humidifying filter according to various embodiments of the present invention Item MA-PET Bamboo (porridge) -PP Viscose rayon - PET Cotton - PET Ref
(In air) When odor occurs Major odor Cause substance concentration
(Unit: ppb)



Pentanal 3.9 1.2 0 1.2 0 Butanal 2.2 0 0 2.0 1.3 Acetic acid 0 0 0 0 0 3- (Methylthio) -1-propene 0 0 0 0 0 Acetaldehyde 1.3 1.2 2.8 1.1 2.1

(The ratio of natural fibers or regenerated fibers used in each experiment in Table 4 is 20%.)

As can be seen from Table 4, according to various embodiments of the present invention, in the case of a humidifying filter manufactured by mixing natural fibers or regenerated fibers together with synthetic fibers, it was found that almost no substances causing irritating odor occurred during drying have. Disadvantages of the hydrophobic synthetic fibers having poor moisture absorbing ability can be complemented by natural fibers or regenerated fibers having good moisture absorption and wetting properties.

In the foregoing, the humidifying filter 10 according to various embodiments of the present invention has been described. Hereinafter, another configuration of the humidification apparatus 100 shown in Fig. 1 will be described.

The blowing fan 20 is configured to form a flow of air in accordance with the driving speed of a motor (not shown) to supply outside air to the humidifying filter 10. The amount of vaporization in the humidifying filter 10 can be adjusted according to the air volume provided by the blowing fan 20, and generally, the larger the air volume, the greater the amount of vaporization.

The air volume provided by the air blowing fan 20 may mean the volume of external air supplied to the humidifying filter 10 by the blowing fan 20 per unit time and the air flow rate may vary depending on the driving speed of the motor. That is, as the driving speed of the motor increases, the amount of air supplied by the air blowing fan 20 may increase, and as the driving speed of the motor decreases, the air amount may decrease. The air flow rate of the blowing fan 20 can be controlled by adjusting the driving speed of the motor in a control section (not shown) of the humidifying apparatus 100.

The water tank 30 is configured to supply water to the humidifying filter 10. Specifically, the water in the water tank 30 is absorbed by the humidifying filter 10 and then supplied to the outside air by the evaporation phenomenon occurring in the humidifying filter 10. The vaporization of the water generated in the humidifying filter 10 can be determined according to the air flow rate of the air blowing fan 20 and the humidity of the outside air as described above. The greater the air flow rate of the air blowing fan 20 and the lower the humidity of the outside air, the more vigorous evaporation of water in the humidifying filter 10 can take place.

The humidifying apparatus 100 according to the above-described various embodiments uses the humidifying filter 10 in which the natural fibers or the regenerated fibers and the synthetic fibers are mixed. Therefore, the humidifying apparatus 10 according to the various embodiments has excellent hygroscopicity / It is possible to use both of the morphological stability and the shrinkage stability, which are advantages of the synthetic fiber, in addition to the fact that there is no fear of generation of irritating odor. Therefore, the humidification apparatus 100 is free from the problem of irritating odor during operation, ensuring an appropriate amount of humidification, and there is no fear that the shape of the humidification filter is deformed (for example, water falls).

Meanwhile, the humidifying apparatus 100 as described above may be implemented as an air purifier having a humidifying function. The humidifying apparatus 100 may further include a filter unit (not shown) for removing contaminants in the air introduced by the blowing fan 20. In this case, In addition, contaminants such as dust, which are present in the air, may be adsorbed to the filter during the passage of the introduced air through the plurality of filters constituting the filter unit. The filter part can perform deodorization, sterilization, etc. in addition to dust removal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention.

100: Humidifying device 10: Humidifying filter
20: blower fan 30: water tank

Claims (14)

In the humidifying filter,
Wherein at least one of natural fibers and regenerated fibers is mixed with hydrophobic synthetic fibers. The method according to claim 1,
The hydrophobic synthetic fibers may be obtained by,
Wherein a hydrophilic coating treatment is not performed. The method according to claim 1,
The above-
Wherein the filter is one of hemp fibers, cotton fibers, and bamboo fibers. The method according to claim 1,
The regenerated fiber may be,
Wherein the viscose rayon is a viscose rayon. The method of claim 1, wherein
The hydrophobic synthetic fibers may be obtained by,
Wherein the filter is one of polypropylene (PP) and polyethylene terephthalate (PET). The method according to claim 1,
Wherein the humidifying filter comprises:
Characterized in that at least one of the regenerated fiber and the natural fiber and the hydrophobic synthetic fiber are woven. The method according to claim 1,
Wherein the humidifying filter comprises:
Wherein at least one of the regenerated fiber and the natural fiber is in the form of a nonwoven fabric mixed with the hydrophobic synthetic fiber. 8. The method of claim 7,
Wherein the nonwoven fabric-type humidifying filter has a density of 80 to 110 g / m ² . The method according to claim 1,
Wherein the humidifying filter comprises:
Wherein the filter has a plurality of bends. The method according to claim 1,
Wherein the natural fiber or the regenerated fiber is a non-
Wherein the filter is made of a single strand. 11. The method of claim 10,
Wherein a ratio of the hydrophobic synthetic fibers in the humidifying filter is 70 to 90%. The method according to claim 1,
Wherein the natural fiber or the regenerated fiber is a non-
And a plurality of strands are twisted. 13. The method of claim 12,
Wherein the ratio of the hydrophobic synthetic fibers in the humidifying filter is 50 to 90%. In the evaporative humidifier,
And a humidifying filter in which at least one of natural fibers and regenerated fibers and hydrophobic synthetic fibers are mixed.

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